Final snow forecast... tightened the gradient from NoVA through MD and NJ and brought the lower amounts slightly further north. Increased snow amounts across the western half of the Appalachians into the Ohio Valley. Changed the "Locally 18-24" into an actual contoured area. pic.twitter.com/Y9tWnqc2t6

— Mark Ellinwood (@markellinwood) December 16, 2020